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Originally posted by shootaway:
You've probably seen what recoil can do to a 500gr bullet nose and what the bullet noses can do to the front wall of a magazine.Now,why can't rounds stacked close together smash upwards against the bolt too.

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Originally posted by JBrown:

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Originally posted by shootaway:
You've probably seen what recoil can do to a 500gr bullet nose and what the bullet noses can do to the front wall of a magazine.Now,why can't rounds stacked close together smash upwards against the bolt too.

Bullet noses, being lead, are very soft. You can scratch them with your fingernails...

The front wall of the magazine is deformed due to repeated direct impact.

You ask: "Now,why can't rounds stacked close together smash upwards against the bolt too" - they can and do but the impact is very minor(more correctly referred to as "rattling around", not smashing) as this in nearly perpendicular to the direction of recoil.

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Originally posted by shootaway:
We are talking big bores here.

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Originally posted by shootaway:
BTW Jason,the stuff in the Makuti vid was muzzle gas.It was not the bullet stiking the ground.

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Originally posted by shootaway:
If anyone believes the dents are not caused by recoil then they should know enough to tell us exactly how the dents are caused.

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Originally posted by Mike70560:
My Lott dents the case mouth also.

Left hand gun so the description is backwards to most of you. It is a MRC action.

Any shell ejected that was fed from the right hand side of the magazine is fine. A round ejected that was fed from the left hand side will be dented on the receiver as it is ejected. The harder you pull the bolt the deeper the dent.

I just checked it several times with empty rounds. Works the same every time.

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Originally posted by shootaway:
This may sound crazy but whenever I shoot the rifle on the same day I cleaned it this way,the recoil on the first few rds is very high.

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This may sound crazy but whenever I shoot the rifle on the same day I cleaned it this way,the recoil on the first few rds is very high.

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Originally posted by Robgunbuilder:
do you see smoke rings at the muzzle? Still hearing voices?-Rob

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Originally posted by shootaway:
This may sound crazy but whenever I shoot the rifle on the same day I cleaned it this way,the recoil on the first few rds is very high.

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Originally posted by Robgunbuilder:
Gunsmithing 101- Did you perchance check that your extractor ring( The ring that holds the extractor in place) isn't MALFORMED, too large and/or protruding when you rotate the bolt just before or during the time in which you extract the case? That could damage the round below the bolt if the sharpe edge of the extractor ring catches the slug and/or rim of the cartridge. That also assumes you have one strong mag spring! Post a picture of the unfired cartridge below the first round you fire and see if its dented or shaved and the wounds look like they could be caused by the sharp edge of the extractor ring. I wonder if by tightening your action screws to god only know what level, you haven't sprung your action, causing this to happen. Don't leave oil in the bore! Dry the bore before you shoot it!
You need to adjust your shooting Helmet back to the minimal recoil setting! Voices Low volume!-Rob

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Originally posted by Andrew cempa:
Shootaway:

Couple of observations:

Ref the triangular dent in the mouth-carefully look at your action-somewhere there is an edge or corner (probably in the right side front ring), maybe the extractor slot-exactly in line with the case mouth. Try this: mark a round with a marker and load that round with the mark in some ref. location, 12:00 whatever. Shoot and observe where the mark and the dent are in relation to each other, insert the case into the mag and slowly extract, you'll likely find the location...

2. The first round high, the second wild and then, low and behold, a group-that my friend is what almost all rifles do after a thorough cleaning, and why most folks, target types or hunters, shoot for real with a fouled bore.

3. Apparent increased felt recoil at the first shot or two-it is not really increased, it only feels that way, all things being equal otherwise.

3. I must concur that if the dent was incurred before firing, you would not know-it would be ironed out at firing. For comparison, lead has a deformation pressure of abut 14k PSI, brass and gilding metal and a hard lead core would probably raise that effort to near 20-25k PSI in order to deform a round loaded and in the mag next up.

Lastly, the gas relief hole in the ruger bolt is an indentation, not a projection, therefore, it cannot be denting anything. You are looking for a projection of some sort.

Best;

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This could have something to do with me or my arm or my arm being tired after cleaning but I doubt it.

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Originally posted by Robgunbuilder:
Are you blowing primers? Gas in the face?does this correspond with the dents? Black smoke from the action spells bad juju.-Rob